On Thu, 16 Nov 2017 04:55:36 -0800, tabbypurr wrote:

On Thursday, 16 November 2017 11:24:30 UTC, The Natural Philosopher
wrote:
On 16/11/17 09:43, wrote:


Its that time of year again when operating the multi fuel stove
banked up with an anthracite based briquette product means there is
some Ash to be disposed of. Wood ash is no problem as it can be used
in the garden but I am reluctant to dispose of coal ash in this way
though I believe it may have been used by some in the past so it get
bagged up and taken to the dump or sometimes put in a bag in the non
recyclable bin which often means double handling as it is too hot for
plastic bags.

Next spring we will need to replace some border edging so killing two
birds with one stone I'm thinking of getting one of those moulds
designed for use with cement to cast some edging and use the ash as
a constituent in place of the some of the cement or sand and cast
some edges over the winter as and when I feel like it.
Anybody have any suggestion as to what ratios would make a reasonably
robust mix.

G.Harman

According to wiki it is in itself a sort of cement,

I can't find anywhere it says that

so I'd mix it 30:70 with cement and use normal 2:1 style mixes.

nor anywhere that recommends that. I dare say it would work, but there
are possibly more optimal mixes.

When the old railway tunnel under my PPoE collapsed (partially) they
pumped it full of a cement filler made partly from ash from the local
power station. Presumably it's nice and liquid and can be pumped well.

--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor